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https://www.tsingfun.com/it/bigdata_ai/841.html 

一文了解大数据领域创业的机会与方向 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...大数据。 二、政策好,政府支持力度大 根据gov.cn9月6日消息,国务院公开发布《国务院关于印发促进大数据发展行动纲要的通知》,纲要里明确的说明,中国将在2018年会建成政府的大数据平台。相比之下,我们敬爱的习大大...
https://www.tsingfun.com/it/tech/1944.html 

如何建立一套适合自己的高胜算交易系统 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...关,只与交易信号有关,我们还会心神不宁的看外盘、听消息、在盘中随意地操作吗? 如果我们深刻地理解了投资盈利的交易哲学,亏损只是我们捕捉成功的必由之路,我们还会不接受亏损、而去追求和寻找高胜率的交易系统...
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Getting and removing the first character of a string

... character vector of length > 1. # a slightly more interesting example xx <- c('hello stackoverflow', 'right back', 'at yah') # grab the substrings myStrings <- regmatches(x, regexec('(^.)(.*)', xx)) This returns a list with the matched full string as the first element and the matching ...
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How do I “source” something in my .vimrc file?

...Stuff.vim :so myStuff.vim and if myStuff.vim contained these lines set xx iI just intersted this<C-]> set yy bbbb4dw It's the same as if you typed those commands into Vim :set xx iI just intersted this<C-]> :set yy bbbb4dw The only file sourced by default is the .vimrc(_vimrc on...
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Postgres dump of only parts of tables for a dev snapshot

...strained data into a "template" database and used CREATE DATABASE test_run_XX TEMPLATE product_snapshot_XX. I of course widdled the data down to a bare minimum so the product snapshot loaded and test db creation operations are fast enough to not be a team impediment. – Trey ...
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Maximum Java heap size of a 32-bit JVM on a 64-bit OS

...faq-138619.html#gc_heap_32bit). We ran our app with -Xms2560m -Xmx2560m -XX:MaxPermSize=512m -XX:PermSize=512m with no issues on Solaris for past couple of years. Tried to move it to linux and we had issues with random out of memory errors on start up. We could only get it to consistently start up...
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Swift 和 .Net 开源,回顾 2015 年 9 大开源事件 - 开源 & Github - 清泛网 - 专注IT技能提升

...后苹果改变了自己的措辞。不过,这仍然是个令人激动的消息,因为 Swift 是伟大的编程语言,它开源之后允许用户自由的使用它。 2、微软开源 .NET 和 Visual Studio 随着领导层的变化和新的市场动态,微软开始拥抱开源。出人...
https://www.tsingfun.com/ilife/idea/535.html 

盘点微软历史上9大失败软件产品! - 创意 - 清泛网 - 专注C/C++及内核技术

...责管理的。 2、MSN Messenger (1997-2012) 是微软推出的即时消息软件,可以与亲人、朋友进行文字聊天、语音对话等即时交流,还可以通过此软件来查看联系人是否联机等。近年来,市场份额持续走低,跌至4.95%。在去年巨资收购Sk...
https://www.tsingfun.com/ilife/relax/1852.html 

蜘蛛的故事 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术

...科状元甘鹿和长风公主完婚;蛛儿和太子芝草完婚。这一消息对蛛儿如同晴空霹雳,她怎么也想不同,佛主竟然这样对她。几日来,她不吃不喝,穷究急思,灵魂就将出壳,生命危在旦夕。太子芝草知道了,急忙赶来,扑倒在床...
https://www.tsingfun.com/it/cpp/285.html 

ON_COMMAND_RANGE 用法 - C/C++ - 清泛网 - 专注C/C++及内核技术

ON_COMMAND_RANGE 用法申明消息宏 + 回调函数模型,其他没什么好解释的。BEGIN_MESSAGE_MAP(CxxDialog, CDialog) ON_COMMAND_RANGE(IDC_BUTTON_1, IDC_BUTTON_ALL, OnButtonClick) END_MESSAGE_MAP() afx_msg void OnButtonClick(UINT nID);ON_COMMAND_RANGE, MFC